mirror of https://gitee.com/openkylin/linux.git
net: mvneta: rely on struct mvneta_stats in mvneta_update_stats routine
Introduce mvneta_stats structure in mvneta_update_stats routine signature in order to collect all the rx stats and update them at the end at the napi loop. mvneta_stats will be reused adding xdp statistics support to ethtool. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lorenzo Bianconi
David S. Miller
parent
69de66fcc9
commit
320d54415f
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@ -397,7 +397,15 @@ static const struct mvneta_statistic mvneta_statistics[] = {
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{ ETHTOOL_STAT_REFILL_ERR, T_SW, "refill_errors", },
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};
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struct mvneta_stats {
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u64 rx_packets;
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u64 rx_bytes;
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u64 tx_packets;
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u64 tx_bytes;
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};
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struct mvneta_ethtool_stats {
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struct mvneta_stats ps;
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u64 skb_alloc_error;
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u64 refill_error;
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};
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@ -406,12 +414,8 @@ struct mvneta_pcpu_stats {
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struct u64_stats_sync syncp;
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struct mvneta_ethtool_stats es;
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u64 rx_packets;
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u64 rx_bytes;
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u64 rx_dropped;
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u64 rx_errors;
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u64 tx_packets;
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u64 tx_bytes;
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};
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struct mvneta_pcpu_port {
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@ -751,12 +755,12 @@ mvneta_get_stats64(struct net_device *dev,
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cpu_stats = per_cpu_ptr(pp->stats, cpu);
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do {
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start = u64_stats_fetch_begin_irq(&cpu_stats->syncp);
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rx_packets = cpu_stats->rx_packets;
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rx_bytes = cpu_stats->rx_bytes;
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rx_packets = cpu_stats->es.ps.rx_packets;
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rx_bytes = cpu_stats->es.ps.rx_bytes;
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rx_dropped = cpu_stats->rx_dropped;
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rx_errors = cpu_stats->rx_errors;
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tx_packets = cpu_stats->tx_packets;
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tx_bytes = cpu_stats->tx_bytes;
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tx_packets = cpu_stats->es.ps.tx_packets;
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tx_bytes = cpu_stats->es.ps.tx_bytes;
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} while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start));
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stats->rx_packets += rx_packets;
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@ -1945,13 +1949,14 @@ static void mvneta_rxq_drop_pkts(struct mvneta_port *pp,
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}
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static void
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mvneta_update_stats(struct mvneta_port *pp, u32 pkts, u32 len)
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mvneta_update_stats(struct mvneta_port *pp,
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struct mvneta_stats *ps)
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{
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struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats);
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u64_stats_update_begin(&stats->syncp);
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stats->rx_packets += pkts;
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stats->rx_bytes += len;
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stats->es.ps.rx_packets += ps->rx_packets;
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stats->es.ps.rx_bytes += ps->rx_bytes;
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u64_stats_update_end(&stats->syncp);
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}
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@ -2026,8 +2031,8 @@ mvneta_xdp_submit_frame(struct mvneta_port *pp, struct mvneta_tx_queue *txq,
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tx_desc->data_size = xdpf->len;
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u64_stats_update_begin(&stats->syncp);
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stats->tx_bytes += xdpf->len;
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stats->tx_packets++;
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stats->es.ps.tx_bytes += xdpf->len;
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stats->es.ps.tx_packets++;
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u64_stats_update_end(&stats->syncp);
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mvneta_txq_inc_put(txq);
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@ -2098,7 +2103,8 @@ mvneta_xdp_xmit(struct net_device *dev, int num_frame,
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static int
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mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq,
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struct bpf_prog *prog, struct xdp_buff *xdp)
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struct bpf_prog *prog, struct xdp_buff *xdp,
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struct mvneta_stats *stats)
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{
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unsigned int len;
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u32 ret, act;
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@ -2108,8 +2114,7 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq,
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switch (act) {
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case XDP_PASS:
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ret = MVNETA_XDP_PASS;
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break;
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return MVNETA_XDP_PASS;
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case XDP_REDIRECT: {
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int err;
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@ -2145,6 +2150,9 @@ mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq,
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break;
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}
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stats->rx_bytes += xdp->data_end - xdp->data;
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stats->rx_packets++;
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return ret;
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}
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@ -2154,7 +2162,8 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp,
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struct mvneta_rx_queue *rxq,
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struct xdp_buff *xdp,
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struct bpf_prog *xdp_prog,
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struct page *page, u32 *xdp_ret)
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struct page *page, u32 *xdp_ret,
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struct mvneta_stats *stats)
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{
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unsigned char *data = page_address(page);
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int data_len = -MVNETA_MH_SIZE, len;
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@ -2185,10 +2194,8 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp,
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if (xdp_prog) {
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u32 ret;
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ret = mvneta_run_xdp(pp, rxq, xdp_prog, xdp);
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ret = mvneta_run_xdp(pp, rxq, xdp_prog, xdp, stats);
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if (ret != MVNETA_XDP_PASS) {
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mvneta_update_stats(pp, 1,
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xdp->data_end - xdp->data);
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rx_desc->buf_phys_addr = 0;
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*xdp_ret |= ret;
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return ret;
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@ -2259,11 +2266,11 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
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struct mvneta_port *pp, int budget,
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struct mvneta_rx_queue *rxq)
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{
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int rcvd_pkts = 0, rcvd_bytes = 0, rx_proc = 0;
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int rx_proc = 0, rx_todo, refill;
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struct net_device *dev = pp->dev;
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struct mvneta_stats ps = {};
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struct bpf_prog *xdp_prog;
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struct xdp_buff xdp_buf;
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int rx_todo, refill;
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u32 xdp_ret = 0;
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/* Get number of received packets */
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@ -2297,7 +2304,8 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
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}
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err = mvneta_swbm_rx_frame(pp, rx_desc, rxq, &xdp_buf,
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xdp_prog, page, &xdp_ret);
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xdp_prog, page, &xdp_ret,
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&ps);
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if (err)
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continue;
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} else {
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@ -2321,8 +2329,9 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
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rxq->skb = NULL;
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continue;
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}
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rcvd_pkts++;
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rcvd_bytes += rxq->skb->len;
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ps.rx_bytes += rxq->skb->len;
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ps.rx_packets++;
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/* Linux processing */
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rxq->skb->protocol = eth_type_trans(rxq->skb, dev);
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@ -2337,8 +2346,8 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
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if (xdp_ret & MVNETA_XDP_REDIR)
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xdp_do_flush_map();
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if (rcvd_pkts)
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mvneta_update_stats(pp, rcvd_pkts, rcvd_bytes);
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if (ps.rx_packets)
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mvneta_update_stats(pp, &ps);
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/* return some buffers to hardware queue, one at a time is too slow */
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refill = mvneta_rx_refill_queue(pp, rxq);
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@ -2346,7 +2355,7 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
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/* Update rxq management counters */
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mvneta_rxq_desc_num_update(pp, rxq, rx_proc, refill);
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return rcvd_pkts;
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return ps.rx_packets;
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}
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/* Main rx processing when using hardware buffer management */
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@ -2472,8 +2481,8 @@ static int mvneta_rx_hwbm(struct napi_struct *napi,
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struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats);
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u64_stats_update_begin(&stats->syncp);
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stats->rx_packets += rcvd_pkts;
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stats->rx_bytes += rcvd_bytes;
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stats->es.ps.rx_packets += rcvd_pkts;
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stats->es.ps.rx_bytes += rcvd_bytes;
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u64_stats_update_end(&stats->syncp);
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}
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@ -2746,8 +2755,8 @@ static netdev_tx_t mvneta_tx(struct sk_buff *skb, struct net_device *dev)
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txq->pending += frags;
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u64_stats_update_begin(&stats->syncp);
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stats->tx_bytes += len;
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stats->tx_packets++;
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stats->es.ps.tx_bytes += len;
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stats->es.ps.tx_packets++;
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u64_stats_update_end(&stats->syncp);
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} else {
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dev->stats.tx_dropped++;
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